English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the rest-frame UV wavelength dependence of the Petrosian-likehalf-light radius ($r_{50}$), and the concentration parameter for a sample of198 star-forming galaxies at 0.5 < z < 1.5. We find a ~5% decrease in $r_{50}$from 1500 \AA\ to 3000 \AA, with half-light radii at 3000 \AA\ ranging from 0.6kpc to 6 kpc. We also find a decrease in concentration of ~0.07 (1.9 <$C_{3000}$ < 3.9). The lack of a strong relationship between $r_{50}$ andwavelength is consistent with a model in which clumpy star formation isdistributed over length scales comparable to the galaxy's rest-frame opticallight. While the wavelength dependence of $r_{50}$ is independent of size atall redshifts, concentration decreases more sharply in the far-UV (~1500 \AA)for large galaxies at z ~ 1. This decrease in concentration is caused by aflattening of the inner ~20% of the light profile in disk-like galaxies,indicating that the central regions have different UV colors than the rest ofthe galaxy. We interpret this as a bulge component with older stellarpopulations and/or more dust. The size-dependent decrease in concentration isless dramatic at z ~ 2, suggesting that bulges are less dusty, younger, and/orless massive than the rest of the galaxy at higher redshifts.

The Wavelength Dependence of High-Redshift Galaxy Structure in the Rest-Frame Ultraviolet